10011019987 has 2 divisors, whose sum is σ = 10011019988. Its totient is φ = 10011019986.

The previous prime is 10011019939. The next prime is 10011020021. The reversal of 10011019987 is 78991011001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10011019987 - 2²⁷ = 9876802259 is a prime.

It is a super-2 number, since 2×10011019987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10011011987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005509993 + 5005509994.

It is an arithmetic number, because the mean of its divisors is an integer number (5005509994).

Almost surely, 2^10011019987 is an apocalyptic number.

10011019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011019987 is an equidigital number, since it uses as much as digits as its factorization.

10011019987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 37.

The spelling of 10011019987 in words is "ten billion, eleven million, nineteen thousand, nine hundred eighty-seven".